PALESTINE, Texas (AP) – A Texas sheriff says the man charged in the killings of six people at a campsite had earlier befriended the group and helped dislodge one of their vehicles from mud.

Anderson County Sheriff Greg Taylor says 33-year-old William Hudson met the six people, who were part of two families, and spent time speaking with them Saturday.

He says Hudson returned hours later and killed them all, though authorities have not said how. Two bodies were found in a travel camper and four were later pulled from a pond. One woman survived the attack.

Taylor says one of the victims had purchased undeveloped land adjacent to property owned by Hudson and his family about 100 miles southeast of Dallas.

He says the victims’ identities won’t be released until autopsies are performed.

Hudson is being held on $2.5 million bond. It was not clear whether he had an attorney.